package top.zhangjianyong.utils.string;

public class StringTest {
    public static void main(String[] args) {
        String s ="  123aSd   ";

        LowString lowString=new LowString(s);
        UpString upString=new UpString(s);
        TrimString trimString =new TrimString(s);


        System.out.println("{"+lowString.getS()+"}");
        System.out.println("{"+upString.getS()+"}");
        System.out.println("{"+trimString.getS()+"}");

    }
}
